Merge pull request #5077 from FabienPean/patch-1

Add const qualifier for getters in MCF skeletonization

Surface_mesh_skeletonization/include/CGAL/Mean_curvature_flow_skeletonization.h

@@ -394,14 +394,14 @@ public:
 
   /// During the local remeshing step, a triangle will be split
   /// if it has an angle larger than `max_triangle_angle()`.
-  double max_triangle_angle()
+  double max_triangle_angle() const
   {
     return m_alpha_TH;
   }
 
   /// During the local remeshing step, an edge will be collapse
   /// if it is length is less than `min_edge_length()`.
-  double min_edge_length()
+  double min_edge_length() const
   {
     return m_min_edge_length;
   }
@@ -423,7 +423,7 @@ public:
   /// @{
 
   /// Maximum number of iterations performed by `contract_until_convergence()`.
-  std::size_t max_iterations()
+  std::size_t max_iterations() const
   {
     return m_max_iterations;
   }
@@ -432,7 +432,7 @@ public:
   /// the meso-skeleton after one iteration is smaller than
   /// `area_variation_factor()*original_area` where `original_area` is the area of the input
   /// triangle mesh.
-  double area_variation_factor()
+  double area_variation_factor() const
   {
     return m_delta_area;
   }
@@ -460,7 +460,7 @@ public:
   /// faster, but results in a skeleton of lower quality.
   /// This parameter corresponds to \f$ w_H \f$ in the original publication.
   /// \cgalAdvancedEnd
-  double quality_speed_tradeoff()
+  double quality_speed_tradeoff() const
   {
     return m_omega_H;
   }
@@ -469,7 +469,7 @@ public:
   /// of the medial axis of the mesh during the contraction steps, so will be the result skeleton.
   // (an additional energy is used during the contraction using the Voronoi poles of the input triangulated mesh
   // as attractors).
-  bool is_medially_centered()
+  bool is_medially_centered() const
   {
     return m_is_medially_centered;
   }
@@ -482,7 +482,7 @@ public:
   /// It is only used if `is_medially_centered()==true`.
   /// This parameter corresponds to \f$ w_M \f$ in the original publication.
   /// \cgalAdvancedEnd
-  double medially_centered_speed_tradeoff()
+  double medially_centered_speed_tradeoff() const
   {
     return m_omega_P;
   }
@@ -526,7 +526,7 @@ public:
    * @param fixed_points
    *        return the positions of fixed points
    */
-  void fixed_points(std::vector<Point>& fixed_points)
+  void fixed_points(std::vector<Point>& fixed_points) const
   {
     fixed_points.clear();
     for(vertex_descriptor vd : vertices(m_tmesh))
@@ -542,7 +542,7 @@ public:
    * @param non_fixed_points
    *        return the positions of non-fixed points
    */
-  void non_fixed_points(std::vector<Point>& non_fixed_points)
+  void non_fixed_points(std::vector<Point>& non_fixed_points) const
   {
     non_fixed_points.clear();
     for(vertex_descriptor vd : vertices(m_tmesh))
@@ -558,7 +558,7 @@ public:
    * @param max_poles
    *        for each surface mesh vertex, record its correspondent Voronoi pole position
    */
-  void poles(std::vector<Point>& max_poles)
+  void poles(std::vector<Point>& max_poles) const
   {
     max_poles.resize(num_vertices(m_tmesh));
     int cnt = 0;
@@ -867,9 +867,6 @@ private:
     m_vertex_id_count = static_cast<int>(num_vertices(m_tmesh));
     m_max_id = m_vertex_id_count;
 
-    if (m_is_medially_centered)
-      compute_voronoi_pole();
-
     init_args();
   }